<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <title>Javascript 表达式</title>
    <script src="https://cdn.staticfile.org/react/16.4.0/umd/react.development.js"></script>
    <script src="https://cdn.staticfile.org/react-dom/16.4.0/umd/react-dom.development.js"></script>
    <script src="https://cdn.staticfile.org/babel-standalone/6.26.0/babel.min.js"></script>
  </head>
  <body>
    <div id="example"></div>
    <script type="text/babel">
      ReactDOM.render(
      	<div>
      	  <h1>{1+1}</h1>
        </div>
      	,
      	document.getElementById('example')
      );
    </script>
  </body>
</html>